Spring wheel



R. H. LANGDALE.

SPRING WHEEL.

APPLICATION FILED NOV, IB, 1919.

l Patented Mar. 21, 1922.

-"(Jtll'lll STATES PATENT FFIC.

RUPERT H. LANG-DALE, 0F CINCINNATI, OHIO.

SPRING WHEEL.

To all whom may concern:

Be it known that I, Horner H. LANGDALE, a citizen of the United States, and a resident of the city of Cincinnati, in the county of Hamilton and State of Ohio, have in- Vvented certain new and useful Improveoi a sieciall strong and durable character while possessing a high degree ci resiliency. One ot the. niain diiliculties et spring wheels for vehicles is the tact that theA springs, in order to be of mnch value in takini;- up shocks, have been necessarily of a `weight which tended to break down nnder wear.

ln my :invention herein, l. have provided 'tor spiral springs to support the resilient rim oi iny invention, and at the saine time provide tor a method ot mounting the springs, which avoids the securing of either end oit the same in any lixed relation to the parts oit the wheel. A. coiled spring which is :tree to move at either end, l have found to last much longer than one which is held tast7 the reason 'tor this being that the jars to which the spring is subjected tend to break it at the point ot attachment.

My objects and other advantages to be noted I Aaccomplish by that certain construction and arrangement ot parts to be hereinafter more speciiically pointed out and claimed.

ln the drawings,

Figure l a central cross section of a wheel made up according to my invention.

Figure 2 a side elevation ot a. like wheel with the side pieces broken away to show one ot the spring' chambers.

Figure 3 a central cross section ot' a modified type of wheel.

l have shown in the drawings a single tread wheel (Figure 3) and a double tread wheel (Figure l) and will describe them separately for the purpose of clearness although the one is a mere duplication of parts of the other.

Referring to Figure 1. there are two hub Specification of Letters Patent. Patented yIar, 21 1G22n Application led November 18, 1919.

Serial No. 338,921.

plates l and 2 between which are bolted an assembly consisting ot the web plate 3,

and two racing plates 4, et, one on each side thereof.

The central plate or web plate 3 extends beyond the periphery ofthe facing plates,

and is formed with a series of circular cham-V receive each, a coiled spring 6, which isv not fastened therein but merely seated and embraced at its the cups. K l Y There are shown two sets of cups, one on each lside of the central plate, and there are shown also two annular rim plates 7, 7, cach having at its periphery a suitably retained resilient tire 8. It is preferred also that the periphery of the central plate, which is outside of the walls ot the cups, be equipped with a resilient bumper ele ment 9.

The rim plates have formed thereon a series oi posts or pins l0, which extend periphery by the walls of laterally to the right for one ot the plates and to the left for the other. The pins are to be inserted at the center of the coiled Y springs, but merely set loosely therein and not attached.

The wheel is completed by the addition of two annular guard plates ll, ll, one on each side, they being` bolted or secured as desired to the facing plates.

As so constructed the wheel is assembled as Yfollows: r'The hub plates, web plate, and facing plates are secured together, and the springs set in the cups on one side ojt the wheel. The rini plate for that side is then set in place with its pins entering `the center of the springs. The guard plate is then mounted to secure the rim plates against withdrawal, and the wheel turned over and the operation completed for the other side in the same manner.

The wheel is then ready for use. The rim plates cannot tall out of place, since they are held through the medium of the webA plates and the guard plates. The said rim plates have also a resiliency in the nature oi a floating suspension, said resiliency of movement being limited by the strength of the springs, and the size of the cups wherein the springs are set.

The guard plates hold the spring against falling out oi' the cups, and the springs llO are not fastened at any point, thereby having free play at the ends, which greatly eX- tends their period of usefulness.

The bumpers at the periphery of the web plate take care of any excessive bump imparted to the rim,` and the resilient itreads for the rim plates prevent rattling noise and cushion the rims `on the road surface.

As shown in Figure 3 there is but a single facing plate 12, secured together with a web plate 13, to hub plates 14. Cups 15 are formed at the periphery of the web plates, and a guardv plate 16 used. The rim plate 17, oi' which there is but one, has a post or pin 18, and there is the resilient tread 19 for the rim plate, and the bumper element 20 for the periphery of the web plate.

rI`he assembly and operation of theV single tread wheel Will be readily apparent ufrom the description we have made or' the above double tread wheel.

fHaving thus described my invention what I claim as new and desire to secure by Ietters Patent is 1. A spring Wheel comprising in part a hub, a web portion and a rim portion, the web portion having circular cups spaced around its edge, coiled springs loosely mounted with free ends in said cups, the rim portion provided with an inwardly extending flange having posts adapted to seat in the center of said coiled springs, and guard plates, secured to one of said parts and overlapping the other on the side opposite the posts to maintain the parts in assembly.

Y 2. A spring wheel comprising in part a hub, web portion and a rim portion, cups in the web portion, spiral springs looselyV mounted with their 'free ends in said cups, the rim portion provided with an inwardly extending flange having posts extending from the flange into the cups for engaging loosely7 in the springs, and ineansfor ma1n-` mounted with free ends in said cups, and

posts extending trom the rim portion for engaging loosely in the springs, and means :for maintaining` said web and rim` portion together, the web portion being provided, with a peripheral band with a strip of resilient material carried by said peripheral band to serve as a'bumper element.' v

RUPERT H. LANGDALE. 

